MCCARTHY by Roy Cohn. 292 pages. New American Library. $5.95.
In the fantastic days of the Army-McCarthy hearings, they would sit head-to-head in the Senate caucus room, the brooding, heavy-browed Senator and the soft-cheeked, puffy-eyed young lawyer, exchanging eager whispers or concerned glances. Now and again the Senator would raise a rasping voice to plead a "point of order." Now and again the young counsel would scuttle through his papers for a sharp question or a deft answer.
That was 14 years ago, and Senator Joe McCarthy has been dead for eleven of them....